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Diptera.info :: Identification queries :: Diptera (adults)
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Mating Neurigona quadrifasciata?, Sweden
morfa
#1 Print Post
Posted on 23-06-2008 21:56
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Location: Stockholm, Sweden (22 June, 2008)

farm4.static.flickr.com/3117/2603757870_de6a3ec8b2.jpg
Larger view: http://farm4.stat...c8b2_b.jpg

BTW, the little mating "dance" performed by the male is quite fascinating to watch. I took the following shot of the same couple a few seconds before the photo above (flash in strobe mode @30Hz during 1/10s => 3 exposures):

farm4.static.flickr.com/3053/2604591911_606a21af62.jpg
Larger view here:http://farm4.stat...af62_b.jpg

Note how the male reaches out to show the female his black tarsi-ornaments!

Another side note: If you've ever tried shooting these flies using pre-flash ttl-metering you know that you will end upp with mostly empty frames since their reaction time is so fast they manage to escape in the short span between pre- and actual flash. While slightly frustrating I've found this to be quite impressive. So the reason I had the flash in repeating mode was to try to capture these blazing take offs. This seems to be the typical take off pattern (50Hz strobe ? you do the math!):
farm4.static.flickr.com/3158/2605481522_a4eec06a92.jpg

Best regards,

John
 
Nikita Vikhrev
#2 Print Post
Posted on 23-06-2008 23:19
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Location: Moscow, Russia
Posts: 9357
Joined: 24.05.05

Bravo!
Nikita Vikhrev - Zool Museum of Moscow University
 
conopid
#3 Print Post
Posted on 24-06-2008 00:04
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Location: United Kingdom
Posts: 1039
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Fantastico!SmileGrin
Nigel Jones, Shrewsbury, United Kingdom
 
morfa
#4 Print Post
Posted on 25-06-2008 08:38
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Thank you Nikita and Nigel!

Would you say <i>N. quadrifasciata</i> is correct or is it hard to tell from these photos?

Cheers!

//John
 
Igor Grichanov
#5 Print Post
Posted on 25-06-2008 14:50
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Location: St.Petersburg, Russia
Posts: 1727
Joined: 17.08.06

Yes, This Doli is Neurigona quadrifasciata. Demonstration of ornamented tarsi to female is very specific to this species. I saw Pogonin's film with the species mating.
Igor Grichanov
 
https://doli.vizrppnsuppl.com/
morfa
#6 Print Post
Posted on 25-06-2008 16:24
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Joined: 30.09.06

Splendid, that's good to know! Thank you Igor!

//John
 
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